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The paper analyses the power quality in power substations from residential and educational buildings (campus university). Measurements were performed in two days, one in a weekday, and one in a weekend, to highlight differences. Measurements in the power substation were performed using power quality analyser. Electrical measurements were performed for voltages and currents spectra, Fresnel diagrams,...
With the increasing depletion of fossil fuels and growing environmental pressure, the mankind has got known the need to vigorously develop the renewable energy and the energy-saving technology. The high Tc superconducting (HTS) power technology will be very helpful to enhance the stability, reliability, and efficiency and transmission capacity of the power grid which would be dominated by the renewable...
This work presents a general filtering and unbalance compensation scheme for electric traction systems. The proposed method uses an active filter controlled with the instantaneous active and reactive power, to reduce the harmonic current distortion and the negative sequence obtained by the system under unbalanced operation in steady state. The proposed filter is evaluated using open delta (V-V) and...
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